Filter.



J. D. RAMSEY.

FILTER.

APPLICATION IILBD PEB.28, 1911.

Patented 11111121912.

OLUMBIA PLANoaRAPn ca.. WASHINGTON, n. c.

JOSEPH D. RAMSEY, 0F BOSTON, MASSACHUSETTS.

FILTER.

To all whom 'it may concern:

Be it known that I, JOSEPH D. RAMsnY, a

citizen of the United States, residing at Boston, in the county ofSuffolk and State of Massachusetts, have invented an Improvement inFilters, of which the followin g description, in connection with theaccompanying drawings7 is a specification, like letters on the drawingsrepresenting like arts.

This invention relates to filters of a type adapted to be interposed inpiping, and while it has various other and more general fields ofusefulness, it is well adapted for use in connect-ion with bubbledrinking fountains and is shown herein arranged for use with such afountain of a construction as set forth in my co-pending application forLetters Patent Ser. No. 601,565, filed January 9, 1911.

In practice it has been found that in bubble drinking fountaininstallations many people object to the use thereof, because they cannotsee the water or know otherwise whether it is clear and pure beforedrinking. Further the water as delivered by an 'ordinary city main isapt at times to contain sediment or other solid matter, which if passeddirectly through the bubble valve construct-ion would clog up the sameand render it inoperative.

My invention aims to produce a construction with a relatively largeextent of strainer surface, and with a bed of filter material throughwhich the water must pass while the entire device is small enough forlocation in ordinary piping which may serve as the container casing forthe filter, thus dispensing with the necessity for any separate casing,and enabling the filter to be incorporated as a part of the supplyconduit to the bubble fountain without any additional piping orconnections.

The improved construction further provides for the reception of sedimentin a pocket provided therefor beneath the strainer to which pocket thesediment thus naturally gravitates.

The above and other detail features of invention will be fullyunderstood from the following description in connection with theaccompanying drawing wherein the figure shows my improved lter invertical section, its container pipe member being also in section andthe connected parts in elevation.

Any suitable source of water supply as for Specification of LettersPatent.

Application led February 28, 1911.

Patented Mar. 12, 1912.

Serial No. 611,523.

instance, a connection from a main is indicated at 10. A section ofpiping 11 usually in practice about an inch in external diameter isthreaded to the delivery end of the supply source 1() and from a lateralnipple 12 thereof, a connection 13 may lead to a bubble drinkingfountain 14 as illustrated in my said prior application, this typifyingany desired delivery destination for the filtered water. The watersupply to the pipe section 11 is controlled by a suitable valve shown asa turning plug 15 interposed in the pipe near the water receiving endthereof, the other end of said pipe being internally threaded as shownat 16 to receive a plug 17 which supports the filter. The plug 17 isshown with a peripheral flange having an annular packing washer 18adapted to be pressed against the pipe end to make a tight connectionwhen the plug is screwed in place. This plug 17 has projecting upwardtherefrom a stem 19 to which is secured by soldering or otherwise a cup20 of relatively thin metal, circular in cross section, and of adiameter to fit quite closely the interior of the pipe 11; the pipe 11may be, and as shown, is reamed out internally for the main part of itslength leaving a slightly constricted neck 21 at the place opposite thefilter cup 20. The cup 20 is folded over upon itself at 22 and againbent upward at 23 to produce an upstanding annular neck 24 spaced awayfrom the outer wall to form an annular pocket. Fitted within the annularneck 24 is a thimble 25 having stretched thereover a piece of strainermaterial such as wire mesh or gauze 26, this strainer material beinggripped between the thimble 25 and the annular neck 24, and thus heldsecurely in place. The thimble 25 may be provided with a bail 27 so thatit can be readily removed and replaced. A collar or thimble 28 has itslower end formed of a size to fit closely over the annular neck 24 andmay, if desired, be split lengthwise to exert a spring clamping actionagainst the same. This collar 28 preferably has its upper portion flaredout somewhat as shown at 29, and a cap 30 of wire gauze or othersuitable foraminous material is soldered or otherwise secured to the topof said collar, said wire gauze being preferably circular in crosssection and enough smaller than the interior diameter of pipe 11 so asto leave an annular space 31 of suicient dimension for the propercirculation of the water in its passage through the device. The cup 20may be filled with granular charcoal, quartz or other suitable filteringmaterial 32, and has its bottom perforated with a series of small holesas shown at 33.

It is desirable that means be provided for drainage of the containerpipe before removal of the filter and to this end a pet cock 34 having ausual valve 35, may be threaded into the plug 17, suitable drainageopenings 36 being formed in the plug to open into the pet cock recess37. Thus when it is desired to remove the filter the turning plug valve15 may be closed and the pet cock valve 35 opened permitting all thewater in the pipe section l1 and in the connection 13 to drainout,`whereupon, the plug 17 may be unscrewed and the entire strainerinstantly removed for cleaning or inspection.

It is to be observed that sediment gathering on the vertical sides ofthe strainer 30 will tend to drop of its own weight and also be washedby the generally downward water movement into the annular pocket 23where it may accumulate, without in any way interfering with the actionof the device and be easily removed when the device is taken out forcleaning as explained. Since the device can, as explained be applied toordinary or standard piping, forming a part of the regular conduit tothe bubble fo-untain or other delivery, this pipingiserving as acontainer casing for the filter, it follows, that the device can be veryconveniently and cheaply installed while the filter itself can be veryinexpensively produced, nearly all its elements being either stock partsor capable of being formed as ordinary stampings. The amount of watercontained'in the vertical pipe section ll is ordinarily sufficient forthe needs of an individual user, and as this will generally stand somelittle time stationary in this section of piping between the intervalswhen water is drawn off, most all the sediment therein will beprecipitated and drop into the annular pocket 23 before passage to thestrainer. Thus in some instances the bed of filter material 32 may bedispensed with, especially where the impurities in the water are mostlyof a nature which will readily precipitate by gravity as beforeexplained. Then the filter bed 32 is used it may be readily removed andrenewed by merely pulling out the thimble 25 which holds in place thegauze disk 26.

An important advantage resulting from my improved constructionis thatsediment and solid matter precipitated from the water in conduit 11v orintercept-ed by the strainer 30, after it drops into the annularsediment pocket 28 orto any point below the top of collar 28 below thepath of water movement and remains undisturbed and at rest where it canhave practically no effect in contaminating the water, and where itcannot cause trouble by clogging up the strainer.

Having described my invention, what I claim as new and desire to secureby Letters Patent is as follows:

1. A device of the kind described, comprising a vertically arrangedconduit having a supply connection at the top, andia delivery connectionat its bottom port-ion, a removable closure for said conduit havingmounted thereon an annular sediment pocket fitting the walls of saidconduit, and a strainer cap mounted to bel also removable with saidclosure with its straining portion entirely beyond the sediment pockettoward the water inlet, whereby water strained through said pocket maypass through the central hole of said annular sediment pocket withoutdisturbing the sediment therein.

2. A device of the kind described, comprising a closure adapted to befitted to a supply conduit, an annular sediment pocket carried therebyto fit within the walls of the conduit, and a strainer cap fitted tosaid pocket with its entire straining portion beyond said pocket wherebywater passing through said strainer may flow through the central hole ofsaid annular pocket without disturbing the sediment in said pocket. 3. Adevice of the kind described, comprising a conduit, a removable closuretherefor, having fixed thereon a filter cup to fit the walls of theconduit, an annular sediment pocket facing towardv the water inlet fromsaid cup, and a strainer extending toward the water inlet, and spacedapart from the walls of the conduit and wholly beyond the sedimentpocket, whereby water passing through said strainer, flows through thecentral hole of said annular pocket and thence through said filter cup.i

4. A device of thekind described, comprising a vertically arrangedconduit having a water supply connection at its top, and a waterdelivery at its bottom'portion, and water purifying means removablymounted in the bot-tom of said conduit, the same consisting of anannular sediment pocket fitted to the walls of said conduit, and astrainer cap with its strainer portion wholly beyond said pocket towardthe water inlet, said cap being spaced away from the walls of theconduit, whereby water passing through said strainer flows through thecentral hole of said annular sediment pocket without stirring up thesediment therein, and the device as a whole may be removed for cleanlng.

5. A device of the kind described, comprising a vertically arrangedconduit having a controllable water supply to its top and a waterdelivery near its bottom, and water purifying means removably mounted inthe bottom of said conduit, the same consisting of a cup filled withfiltering material and fitting the interior Walls of said conduit, astrainer cap removably fitted t0 said cup at the top thereof and spacedapart from the Walls of said conduit, and an annular sediment pocketformed in the upper portion of said cup beneath said strainer cap.

6. A device of the kind described, comprising a vertically arrangedconduit having a Water supply from above and a water delivery connectionat its lower portion, a closure removably fitted to the bottom of saidconduit having a controllable drain passage therethrough, and waterpurifying means mounted on said closure, the lower part of said meansbeing fitted to the interior Walls o-f the conduit, the upper part beingforamino-us and of lesser diameter to leave an annular space between thesame and the Walls of the conduit.

7. A device of the kind described, comprising a closure adapted to beengaged With a Vpipe end, a cup filled with filtering material supportedthereby adapted to .fit the interior of a pipe, and a strainer capfitted to said cup and extending outward therefrom, said strainer capbeing of lesser dialneter than said cup.

8. A device of the kind described, comprising a closure adapted to befitted to a pipe end having a drain passage therethrough, a cup filledwith filtering material and mounted on said closure and having anannular pocket formed at its upper portion, and a strainer cap of lesserdiameter than said cup fitted to and carried by the top thereof.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

JOSEPH D. RAMSEY. Vitnesses:

CLYDE L. ROGERS, M. J. SPALDING.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

